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Assignee: Chessell Limited

Location: WestSussex, GB2
No. of patents: 1

Number	Title	Issue Date
4528754	Self-propelled drawing device or tracing device A self-propelled drawing device is driven by two independent wheels whose axes are fixed, and has a writing tip which marks the drawing medium at a point which is not on the imaginary line joining the points of contact of the wheels with the drawing mediu...	07/16/1985